Add CI/CD for auto-deployment of blog
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2026-04-15 16:37:12 -07:00
parent b96f7ed3f0
commit f3eb83bcc0
4 changed files with 324 additions and 0 deletions

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name: Build and Push Docker Image
on:
push:
branches:
- main
env:
REGISTRY: git.cbraaten.dev
IMAGE_NAME: git.cbraaten.dev/caleb/blog
jobs:
build:
runs-on: ubuntu-latest
permissions:
contents: read
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Get short SHA
id: sha
run: echo "short_sha=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
- name: Print Secrets
run: |
if [ -z "${{ secrets.REGISTRY_USERNAME }}" ]; then
echo "ERROR: REGISTRY_USERNAME secret is not set"
exit 1
else
echo "✓ REGISTRY_USERNAME is set"
fi
if [ -z "${{ secrets.REGISTRY_PASSWORD }}" ]; then
echo "ERROR: REGISTRY_PASSWORD secret is not set"
exit 1
else
echo "✓ REGISTRY_PASSWORD is set"
fi
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Login to Registry
uses: docker/login-action@v3
with:
registry: ${{ env.REGISTRY }}
username: ${{ secrets.REGISTRY_USERNAME }}
password: ${{ secrets.REGISTRY_PASSWORD }}
- name: Build and Push Docker Image
uses: docker/build-push-action@v6
with:
context: .
file: ./Dockerfile
push: true
tags: |
${{ env.IMAGE_NAME }}:latest
${{ env.IMAGE_NAME }}:${{ steps.sha.outputs.short_sha }}

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name: Deploy to Nomad
on:
workflow_run:
workflows: ["Build and Push Docker Image"]
types:
- completed
env:
NOMAD_ADDR: ${{ secrets.NOMAD_ADDR }}
NOMAD_TOKEN: ${{ secrets.NOMAD_TOKEN }}
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Get image tag from git SHA
id: tag
run: |
image_tag=$(git rev-parse --short HEAD)
echo "image_tag=$image_tag" >> $GITHUB_OUTPUT
- name: Update image tag in job definition
run: |
# Replace the image tag placeholder with actual tag
jq '.Job.TaskGroups[0].Tasks[0].Config.image |= sub(":.*"; ":${{ steps.tag.outputs.image_tag }}")' \
blog.nomad.json > blog.nomad.final.json
- name: Submit job via Nomad API
run: |
curl -s -X POST \
-H "X-Nomad-Token: ${{ env.NOMAD_TOKEN }}" \
-H "Content-Type: application/json" \
-d @blog.nomad.final.json \
"${{ env.NOMAD_ADDR }}/v1/jobs"
- name: Verify deployment
run: |
echo "Waiting for deployment to stabilize..."
sleep 5
curl -X GET \
-H "X-Nomad-Token: ${{ env.NOMAD_TOKEN }}" \
"${{ env.NOMAD_ADDR }}/v1/job/blog"

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blog.nomad.hcl Normal file
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# export to json for ci/cd scripts with the following command
# nomad job run -output blog.nomad.hcl > blog.nomad.json
locals {
HOST = "cbraaten.dev"
}
variable "image_tag" {
type = string
default = "latest"
}
job "blog" {
type = "service"
group "blog" {
count = 1
network {
port "http" {
to = 3000
}
}
service {
name = "blog"
provider = "consul"
port = "http"
tags = [
"traefik.enable=true",
"traefik.http.routers.domainredirect.tls=true",
"traefik.http.routers.domainredirect.entrypoints=websecure",
"traefik.http.routers.domainredirect.rule=Host(`${local.HOST}`)",
]
}
task "blog" {
driver = "docker"
config {
image = "git.cbraaten.dev/caleb/blog:${var.image_tag}"
ports = ["http"]
}
}
update {
max_parallel = 1
min_healthy_time = "10s"
healthy_deadline = "3m"
auto_revert = true
}
}
}

164
blog.nomad.json Normal file
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{
"Job": {
"Region": null,
"Namespace": null,
"ID": "blog",
"Name": "blog",
"Type": "service",
"Priority": null,
"AllAtOnce": null,
"Datacenters": null,
"NodePool": null,
"Constraints": null,
"Affinities": null,
"TaskGroups": [
{
"Name": "blog",
"Count": 1,
"Constraints": null,
"Affinities": null,
"Tasks": [
{
"Name": "blog",
"Driver": "docker",
"User": "",
"Lifecycle": null,
"Config": {
"image": "git.cbraaten.dev/caleb/blog:latest",
"ports": [
"http"
]
},
"Constraints": null,
"Affinities": null,
"Env": null,
"Services": null,
"Resources": null,
"RestartPolicy": null,
"Meta": null,
"KillTimeout": null,
"LogConfig": null,
"Artifacts": null,
"Vault": null,
"Consul": null,
"Templates": null,
"DispatchPayload": null,
"VolumeMounts": null,
"Leader": false,
"ShutdownDelay": 0,
"KillSignal": "",
"Kind": "",
"ScalingPolicies": null,
"Secrets": null,
"Identity": null,
"Identities": null,
"Actions": null,
"Schedule": null
}
],
"Spreads": null,
"Volumes": null,
"RestartPolicy": null,
"Disconnect": null,
"ReschedulePolicy": null,
"EphemeralDisk": null,
"Update": {
"Stagger": null,
"MaxParallel": 1,
"HealthCheck": null,
"MinHealthyTime": 10000000000,
"HealthyDeadline": 180000000000,
"ProgressDeadline": null,
"Canary": null,
"AutoRevert": true,
"AutoPromote": null
},
"Migrate": null,
"Networks": [
{
"Mode": "",
"Device": "",
"CIDR": "",
"IP": "",
"DNS": null,
"ReservedPorts": null,
"DynamicPorts": [
{
"Label": "http",
"Value": 0,
"To": 3000,
"HostNetwork": "",
"IgnoreCollision": false
}
],
"Hostname": "",
"MBits": null,
"CNI": null
}
],
"Meta": null,
"Services": [
{
"Name": "blog",
"Tags": [
"traefik.enable=true",
"traefik.http.routers.domainredirect.tls=true",
"traefik.http.routers.domainredirect.entrypoints=websecure",
"traefik.http.routers.domainredirect.rule=Host(`cbraaten.dev`)"
],
"CanaryTags": null,
"EnableTagOverride": false,
"PortLabel": "http",
"AddressMode": "",
"Address": "",
"Checks": null,
"CheckRestart": null,
"Connect": null,
"Meta": null,
"CanaryMeta": null,
"TaggedAddresses": null,
"TaskName": "",
"OnUpdate": "",
"Identity": null,
"Weights": null,
"Provider": "consul",
"Cluster": "",
"Kind": ""
}
],
"ShutdownDelay": null,
"StopAfterClientDisconnect": null,
"MaxClientDisconnect": null,
"Scaling": null,
"Consul": null,
"PreventRescheduleOnLost": null
}
],
"Update": null,
"Multiregion": null,
"Spreads": null,
"Periodic": null,
"ParameterizedJob": null,
"Reschedule": null,
"Migrate": null,
"Meta": null,
"UI": null,
"Stop": null,
"ParentID": null,
"Dispatched": false,
"DispatchIdempotencyToken": null,
"Payload": null,
"ConsulNamespace": null,
"VaultNamespace": null,
"NomadTokenID": null,
"Status": null,
"StatusDescription": null,
"Stable": null,
"Version": null,
"SubmitTime": null,
"CreateIndex": null,
"ModifyIndex": null,
"JobModifyIndex": null,
"VersionTag": null
}
}